| article html file updated | 29 August 2025 20:56 CEST | Update | https://www.mdpi.com/2072-6643/6/2/504 |
| article html file updated | 15 July 2022 22:50 CEST | Update | N/A |
| article html file updated | 6 February 2020 06:59 CET | Update | N/A |
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| article html file updated | 18 March 2014 09:55 CET | Original file | N/A |
| article xml file uploaded | 18 March 2014 09:54 CET | Original file | https://www.mdpi.com/2072-6643/6/2/504/xml |
| article pdf uploaded. | 27 January 2014 15:20 CET | Version of Record | https://www.mdpi.com/2072-6643/6/2/504/pdf |
